1888.] H. H. Anderson — Description of Anoj^lo-phrja, geolosomatis. 383 



These were, however, so small that, even with the aid of a -5^'' im- 

 mersion objective, I was unable to distinguish their structure. Possibly, 

 they were the result of sporular reproduction and were simply immature 

 forms of this Anoplophrya. After an interval of some weeks from the 

 time of the first disappearance of the parasite, I again found a few small 

 specimens, but the accidental overtarn of the wine-glass by a servant 

 put an end to the investigation. 



EXPLANATION OF PLATE I. 



Pig. 1. Anoplophri/a ceolosomatis, n. sp., x 400 ; n., endoplast or nucleus, c. v., 

 contractile vesicle. 



Fig. 2. A specimen showing refractive particles (n'.) in the endoplast and an 

 unusually conspicuous contractile vesicle, x 400. 



Fig. 3. A specimen which had commenced to divide, x 300. 



Fig. 4, Another in which the fission had proceeded still further, x 300. 



Pig. 5. A third divided into a chain of three segments, x 300. 



The three last figures having all been drawn from specimens mounted in water 

 exhibit no trace of a contractile vesicle. 



